TY  - BOOK
AU  - International Electrotechnical Commission
TI  - IEC: 189-6 - 1982 (Amendment No.1 - 1989); Low-frequency cables and wires with P.V.C. Insulatiion and P.V.C. sheath part 6 Signalling cables in singles for telecommunication equipment and installation
PY  - 1989///
CY  - Geneva
PB  - IEC
ER  -